Portfolio comparison
James Ritty vs Rohm Co Ltd
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Top Patents1 enriched
US 271363· 1883
How James Ritty's First Cash Register Tracked Sales
Activity by Decade
1880s1
Company B
Rohm Co Ltd
Patents indexed
1
Year range
2024
Most recent
2024
semiconductorsconsumer_electronicsautomotive
Top Patents1 enriched
US RE49912· 2024
How Rohm Designs Compact Semiconductor Packages for Better Heat Management
Activity by Decade
2020s1
How to use
Bookmark a comparison URL to save it. Format: /compare/companies?a=[slug]&b=[slug]. Also see patent-level comparison.